3'-6-Fluorescein Serinol CPG

3'-6-Fluorescein Serinol CPG is a fluorescein-bearing controlled pore glass (CPG) solid support designed for oligonucleotide labeling workflows where a covalently attached dye is required. The fluorescein chromophore enables bright visible fluorescence for downstream imaging and fluorescence readouts, while the solid-phase presentation supports automated synthesis and purification strategies commonly used in nucleic acid probe development.

1. Oligonucleotide Fluorescent Labeling

3'-6-Fluorescein Serinol CPG is used as a solid-supported fluorescein building block to introduce a fluorescein tag into DNA or RNA oligonucleotides during automated phosphoramidite synthesis. Researchers and assay developers rely on this format to generate fluorescently labeled probes for hybridization-based workflows, including binding studies and fluorescence-based nucleic acid assays, where the dye is tethered to the oligo through a stable linker architecture. The CPG support simplifies handling in automated synthesis and supports consistent incorporation of the fluorophore into probe constructs used in molecular imaging reagent development and nucleic acid analysis.

2. Fluorescence Hybridization Probes

3'-6-Fluorescein Serinol CPG supports the preparation of fluorescein-labeled oligonucleotide probes used to monitor nucleic acid hybridization events in solution or on solid phases. Molecular biology teams use fluorescein-tagged probes to visualize target binding in fluorescence microscopy and to quantify hybridization in fluorescence plate-based assays, where the dye provides a direct optical signal associated with probe presence. This reagent format is especially useful when a covalently attached fluorescein is preferred over post-labeling, helping maintain probe integrity across washing and incubation steps typical of nucleic acid analysis workflows.

3. Nucleic Acid Assay Development

3'-6-Fluorescein Serinol CPG is applied in the development of fluorescence readout assays that incorporate labeled oligonucleotides as detection elements, including probe-based screening and analytical characterization of nucleic acid samples. Chemical biology and diagnostics-reagent R&D teams use fluorescein-labeled probe constructs to build assay panels for research-grade workflows such as target-dependent fluorescence measurements and signal reporting in nucleic acid workflows. The solid-phase fluorescein incorporation strategy helps streamline probe generation for iterative assay optimization, including compatibility with common fluorescence instrumentation used for nucleic acid detection and molecular imaging reagent evaluation.